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TRYON

PWS ID: OK2004103 · TRYON, Oklahoma 74875

TRYON serves 448 people in TRYON, Oklahoma using Groundwater water sources. It has 511 recorded EPA violations, including 87 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: TRYON

TRYON is a local-owned community water system that delivers drinking water to 448 residents in TRYON, Oklahoma (Lincoln County) through 196 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 511 total violations for this system , of which 87 (17%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 386 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Selenium, recorded in 43 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oklahoma, EPA tracks 1,262 public water systems serving 3,699,452 people, with 336,706 cumulative violations and 113,804 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 266.8 violations. TRYON's 511 violations sit above the Oklahoma average. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
448
Total Violations
511
Health-Based Violations
87
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
196
County
Lincoln
School/Daycare
No
MCL Violations
74
Monitoring Violations
386
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Selenium MCL 43 1984
Chlorine MR 40 2025
Revised Total Coliform Rule MON 34 2025
Coliform (TCR) MR 33 2014
Nitrate-Nitrite MR 28 2024
Gross Alpha, Excl. Radon and U MCL 15 2016
Consumer Confidence Rule Other 14 2025
Combined Uranium MCL 12 2018
Lead and Copper Rule MR 12 2022
1,2,4-Trichlorobenzene MR 10 2017
cis-1,2-Dichloroethylene MR 10 2017
Xylenes, Total MR 10 2017
o-Dichlorobenzene MR 10 2017
1,1-Dichloroethylene MR 10 2017
trans-1,2-Dichloroethylene MR 10 2017
Carbon tetrachloride MR 10 2017
Trichloroethylene MR 10 2017
1,1,2-Trichloroethane MR 10 2017
Tetrachloroethylene MR 10 2017
CHLOROBENZENE MR 10 2017
Toluene MR 10 2017
Ethylbenzene MR 10 2017
DICHLOROMETHANE MR 10 2017
Benzene MR 10 2017
Styrene MR 10 2017
p-Dichlorobenzene MR 10 2017
Vinyl chloride MR 10 2017
1,1,1-Trichloroethane MR 10 2017
1,2-Dichloropropane MR 10 2017
Chlorine MRDL 8 2021

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for TRYON.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID OK2004103 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oklahoma Drinking Water Authority

Oklahoma's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find OK regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Chlorine MR 40 SDWIS / OK2004103 / 0999
2025 Revised Total Coliform Rule MON 34 SDWIS / OK2004103 / 8000
2025 Consumer Confidence Rule Other 14 SDWIS / OK2004103 / 7000
2024 Nitrate-Nitrite MR 28 SDWIS / OK2004103 / 1038
2024 E. COLI MR 7 SDWIS / OK2004103 / 3014
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / OK2004103 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / OK2004103 / 5200
2022 Lead and Copper Rule MR 12 SDWIS / OK2004103 / 5000
2021 Chlorine MRDL 8 SDWIS / OK2004103 / 0999
2021 Chlorine dioxide MRDL 4 SDWIS / OK2004103 / 1008
2020 Combined Radium (-226 and -228) MR 3 SDWIS / OK2004103 / 4010
2020 Gross Beta Particle Activity MR 3 SDWIS / OK2004103 / 4100
2020 Combined Uranium MR 3 SDWIS / OK2004103 / 4006
2020 Gross Alpha, Excl. Radon and U MR 3 SDWIS / OK2004103 / 4000
2019 TTHM MR 7 SDWIS / OK2004103 / 2950

How TRYON Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric TRYON Oklahoma avg Federal benchmark
Total violations 511 266.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 87 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 448 2,931 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,262 regulated public water systems in Oklahoma.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is TRYON water safe to drink? ▼
TRYON (PWS ID: OK2004103) has 511 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 448 people using Groundwater sources.
How many people does TRYON serve? ▼
TRYON serves 448 people in TRYON, Oklahoma. It is a Local-owned system using Groundwater water sources with 196 service connections.
What type of violations does TRYON have? ▼
TRYON has 511 total violations: 87 health-based violations (MCL exceedances or treatment failures), 386 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in TRYON water? ▼
No PFAS testing data is available for TRYON under the EPA's UCMR5 monitoring program.
What water source does TRYON use? ▼
TRYON uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial